Suppressed FCNC in New Physics with Shared Flavor Symmetry

Understand

Many extensions of the Standard Model(SM) generate contributions to Flavor Changing Neutral Current(FCNC) processes that must have sufficient flavor suppression to be consistent with experiments, if the new physics (NP) is associated with a scale of a TeV.

• Here we present a mechanism for suppressing the NP effects to FCNC processes.
• We consider the possibility that the source of NP contributions to FCNC processes share the same flavor symmetry underlying the SM source of FCNC processes which are the quark and lepton mass matrices.
• We call this the principle of shared flavor symmetry.